Verizon Wireless is joining the GPS party already attended by Sprint/Nextel, with the launch of its new GPS VZ Navigator service. Verizon has teamed up with Networks in Motion, making use of the company’s AtlasBook software. Using cell phone towers to triangulate your approximate position, your phone then connects to GPS satellites for more precise location information. Then, Nateq maps are downloaded onto your mobile (via Verizon’s “Get it Now” service applets), and well, it’s up to you to figure out what to do from there.

The VZ Navigator service can be had for $10 a month, or for your shorter road trips, $3 a day. And yes, you will be charged (on top) for download charges related to your retrieving of maps. Another bummer is that incoming calls will interrupt data transmission; so, tell your mom that you’ll call her back, after you figure out where the heck you are.

The service will initially only be available on the new Motorola V325, which can be purchased for about $80, but expect Verizon to launch a number of other cell phones in the coming year that will also be compatible with the new VZ Navigator service.